Error Unbalanced or unexpected parenthesis or bracket.

% Domain
a=0;
b=1;
c=0;
d=1;
%Pembagian Grid
xgrid=4;
ygrid=3;
U=(zeros(ygrid+1,xgrid+1));
x=linspace(a,b,xgrid+1);
for i=1:xgrid+1
    U(1,i)=sym(sin(pi*x(i)));
end
w=sym('w',[1(xgrid-1)*(ygrid-1)]);
k=1;
for j=2:ygrid
    for i=2:xgrid
        U(j,i)=w(k);
        k=k+1;
    end
end

Error Unbalanced or unexpected parenthesis or bracket in "w=sym('w',[1(xgrid-1)*(ygrid-1)]);"

Please Help!!

Answer 1

[Yongjian Feng]

Missing a space? After "[1"

w=sym('w',[1 (xgrid-1)*(ygrid-1)]);

[Muhammad Fauzan]

Its work.

Thank you.

[Yongjian Feng]

Accept the answer please so other know the solution as well. Thanks.